@charset "utf-8";

.aboutus{
    background-color: #fff;
    height: 850px;
    margin: 20px auto;
    padding: 50px 20px;
    box-sizing: border-box;
    color: #67656a;
}
.introduction{
    text-align: center;
    border-bottom: 1px solid #cdcdcd;

}
.introduction .title{
    font-size: 18px;
}
.introduction .title-en{
    font-size: 12px;
    color: #cdcdcd;
    line-height: 20px;
}
.aboutus .introduction-content{
    font-size: 14px;
    margin: 50px 0;
}
.introduction-content img{
    width: 361px;
    height: 228px;
    float: left;
    margin-right: 40px;
}
.introduction-content div{
    float: left;
    width: 675px;
}
.introduction-content p{
    text-align: left;
    line-height: 20px;
    border-bottom: 1px dashed #cdcdcd;
    padding: 10px 0 ;
}
.introduction-content p:last-child{
    border-bottom: 0;
}

/* 证书 */
.card{
    text-align: center;
}
.card h4{
    margin: 40px 0;
    font-size: 18px;
    font-weight: normal;
    text-align: left;
}
.card img{
    width: 300px;
    height: 210px;
}
.card .img-middle{
    margin: 0 50px;
}